One 100 g serving of beef, brisket, flat half, separable lean only, trimmed to 1/8" fat, choice, raw has 129 calories, 0 g of carbs, and 0 g of fiber.
Full macro and micronutrient breakdown, plus how this compares across diets, is on the Beef, brisket, flat half, separable lean only, trimmed to 1/8" fat, choice, raw nutrition facts page.